Question

The equation of line passing through $(3,2,-1)$ and having dr`s as $(4,5,8)$

Answer 1

The equation of line passing through $(x_1,y_1,z_1)$ and having dr`s as $(a,b,c)$ is $\frac{x-x_1}{a}=\frac{y-y_1}{b}=\frac{z-z_1}{c}$

The equation of line passing through $(3,2,-1)$ and having dr`s as $(4,5,8)$ is $\frac{x-3}{4}=\frac{y-2}{5}=\frac{z+1}{8}$